Deep Learning for Accurate Indoor Human Tracking with a mm-Wave Radar

Autor: Michele Rossi, Domenico Solimini, Jacopo Pegoraro, Francesca Meneghello, Federico Matteo, Enver Bashirov
Rok vydání: 2020
Předmět:
Zdroj: 2020 IEEE Radar Conference (RadarConf20)
DOI: 10.1109/radarconf2043947.2020.9266400
Popis: We address the use of backscattered mm-wave radio signals to track humans as they move within indoor environments. The common approach in the literature leverages the extended Kalman filter (EKF) method, which however undergoes a severe performance degradation when the system evolution model is highly non-linear or presents long-term time dependencies among the system states. In this work, we propose an original model-free tracking procedure based on denoising autoencoders and sequence-to-sequence neural networks, showing its superior performance with respect to state-of-the-art methods. Our architecture can be trained in either a supervised or unsupervised manner, trading tracking accuracy for flexibility. The proposed system is tested on our own measurements, obtained with a 77 GHz radar on single and multiple subjects simultaneously moving in an indoor space. The results are compared against the ground truth trajectories from a motion tracking system, obtaining average tracking errors as low as 12 cm. This conference paper is subject to ©2020 IEEE Published version of the paper can be found in the proceedings of RadarConf2020.
Databáze: OpenAIRE